Definition of Relation. A relation is a set of ordered pairs. This seems like an odd definition but weâll need it for the definition of a function (which is the main topic of this section).
Classic (Swedish) massage and Thai massage have been proven to relieve chronic lower back pain. Classic massage for lower back pain is a technique that relaxes muscles in the area through the application of pressure. The area is rubbed in the direction in which blood flows back to the heart. Thai massage, on the other hand, is a technique that pulls and stretches the area of the back and neck.
Massage can help tight muscles release and loosen up a stiff and sore lower back. All you need is a a foam roller. Place the foam roller under your lower back and place your feet flat on the floor. Using your feet for leverage, roll up and down on the foam roller over the muscles that are tight and tender.